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N; H WHISEMAN D. Sorghum Evaporator.

Patented May 7., 1867.

MPETERS, PHDTO-UTMOGRAPHER, WASHINGTON. u c.

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N. H. WHISEMAND, 0F INDEPENDENCE,- IOWA. Letters Patent No. 64,606,clatedllfay 7, 1867.

I IMPROVED SORGH UM-EVAPORATOR.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, N. H. WIIISEMAND, of Independence, in the county ofBuchanan, and State of Iowa, have invented certain new and usefulimprovements in Sorghum-Evaporators and I do hereby declare that thefollowing is a full and complete description of the construction of thesame, reference being. had to the accom panying drawings, making a partof this specification, in which- Figure 1 is a top view of theevaporator.

Figure 2 is a longitudinal section.

Figure 3 is a transverse section.

Like letters of reference refer to like parts in the views.

This evaporator consists of a shallow wooden vat, and in shape an oblongsquare, as represented in fig. 1,

the bottom of which is of metal, and is made tight by being lutedandclosely nailed. This vat is divided into three sections, A, B, and C,fig. 1. Section A is subdivided into several compartments a a. Section Cis also subdivided into three compartments, in the same way, and of thesame size. These compartments have communication with each other by themeans of the small opening 0. These are made by cutting out the lowercorners of the division planks a. The openings are not directly oppositeeach'other, but are alternating, z'. e., the right-hand corner of thefirst division is cut out, as shown at C, fig 3, whereas the left-handcorner of the second division is removed, and so on, through the wholenumber of divisions, as indicated in fig. 2. The two longitudinalsections A B have communication with each other by the opening D, fig.2; and so also are the three compartments at the end in communicationwith each other in the same way. E is agate, by the means of which thecommunication between the compartments in section A and those in sectionB may beclosed. F is also a gate, to which reference will be made. Theouter side of section B is made lower than the inner side, so that theperforated plate,or strainer G is slanting outward from the vat, and thepurpose of which will hereafter be shown. I g

The manner of operating this apparatus is as follows: It is placed uponthe top of two parallel walls, and which are of suilicient height forconvenience, and 'to secure room for fuel and a good draught. The juiceis thrown into the section A, and is then brought to a boiling point. Asfast as the dress accumulates, it is skimmed off and thrown upon thestrainer G, referred to, the better portion of which runs through intothe section of the vat B, to be again heated or boiled, and the scumfalls over the side of the vat, the strainer being made to project overthe sides of the vat for that purpose. The two sections being connectedby the opening D, as aforesaid, by this means there is a free minglingof the contents of the two sections. When the juice has beensuificientlyboiled, it is allowed to run into the section 0, by raisingthe gate E, for the purpose of cooling before being drawn off. This endof the vat is a little lower than the other, in order to cause a currentin that direction. By having the openings arranged in the manner asabove described, the direction of the sirup in flowing through theseveral compartments is transversely, or from side to side of the Vat.By this means it is kept at a more uniform temperature, by being moreequally exposed to the fire, than it would be if it flowed in a straightdirection. When the sirup has been sufficiently boiled and cooled in thecooling section of the vat, it is then drawn off through the gate E,referred to.

What I claim as my improvement, and desire to secure by Letters Patent,is'- The arrangement 0f the sectional compartments a, openings C,compartments 0, and gates E F, in combi nation with the section B andstrainer G, operating conjointly as and for the purposes set forth.

N. H. WHISEMAND. Witnesses:

J. HOLMAN, Z. '1. Lone.

